T3: Radio Waves
Radio wave characteristics: properties of radio waves; propagation modes
3 Topics
35 Questions in this pool
3 Questions from these topics will be on your exam
T3A: Radio Wave Characteristics
Radio wave characteristics: how a radio signal travels; fading; multipath; polarization; wavelength vs absorption; antenna orientation
13 Questions in this topic
1 Question on your exam
T3B: Radio and Electromagnetic Wave Properties
Radio and electromagnetic wave properties: the electromagnetic spectrum; wavelength vs frequency; nature and velocity of electromagnetic waves; definition of UHF, VHF, HF bands; calculating wavelength
11 Questions in this topic
1 Question on your exam
T3C: Propagation Modes
Propagation modes: line of sight; sporadic E; meteor and auroral scatter and reflections; tropospheric ducting; F layer skip; radio horizon
11 Questions in this topic
1 Question on your exam